Stereoscopic Two-Dimensional Display Device

• US 20080273083A1
• Filed: 09/28/2005
• Published: 11/06/2008
• Est. Priority Date: 10/07/2004
• Status: Active Grant

• Current Assignee: Asukanet Company, Ltd.
• Original Assignee: Pioneer Corporation
• Inventors: Ishikawa, Masaru, Tomisawa, Isao
• Granted Patent: US 8,094,184 B2
• Time in Patent Office: Days
• US Class Current: 348/51
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G02B 30/34 Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
• CPC Class Codes: G02B 30/36 using refractive optical elements, e.g. prisms, in the optical path between the images and the observer

Abstract

To facilitate seeing of the image on a peripheral region which may become difficult to see as the screen size increases.

A stereoscopic two-dimensional image display device includes a display unit 1 including an image display plane 1a on which an image is displayed; an image transfer panel 3 arranged apart from the image display plane, for imaging light emitted from the image display plane on an imaging plane 2 in a space, thereby displaying a stereoscopic two-dimensional image; and an optical path changing member (not shown) arranged between the image display plane and the imaging plane, for changing the optical path of the light emitted from the peripheral edge having a predetermined region constituting the image display plane. The optical path of light emitted from the peripheral edge is changed by the optical path changing means so that the light can be reached the eyes of a viewer 100 who sees at a near position.

Claims

1. A stereoscopic two-dimensional image display device comprising:

a display unit including an image display plane on which an image is displayed;

an image transfer panel arranged apart from the image display plane, for imaging light emitted from the image display plane on an imaging plane in a space, thereby displaying a stereoscopic two-dimensional image; and

an optical path changing member arranged between the image display plane and the imaging plane, for changing the optical path of the light emitted from the peripheral edge having a predetermined region constituting the image display plane, wherein

the stereoscopic two dimensional image which is individually visible is displayed on the imaging plane of the peripheral edge formed through the optical path changing member and the imaging plane except the peripheral edge, and a mark serving as an image for guidance is displayed in the peripheral edge in at least its right and left position with respect to a central region.

3. A stereoscopic two-dimensional image display device according to claim 1, wherein

the optical path changing member bends the light emitted from the peripheral edge toward the center of the imaging plane.

5. A stereoscopic two-dimensional image display device according to claim 3, wherein

the optical path changing member is a lens.

6. A stereoscopic two-dimensional image display device according to claim 3, wherein

the optical path changing member is a prism.

7. A stereoscopic two-dimensional image display device according to claim 3, wherein

the optical path changing member is a prism sheet having an arrangement of a plurality of prisms.

9. A stereoscopic two-dimensional image display device according to claim 1, wherein

the optical path changing member is located in the vicinity of the front surface or rear surface of the image transfer panel.

10. A stereoscopic two-dimensional image display device according to claim 3, wherein

the image transfer panel is a micro-lens array.

11. A stereoscopic two-dimensional image display device according to claim 1, wherein

the mark is eliminated after a viewing position is adjusted.

2. (canceled)

4. (canceled)

8. (canceled)